JPH0318928Y2 - - Google Patents
Info
- Publication number
- JPH0318928Y2 JPH0318928Y2 JP1983105445U JP10544583U JPH0318928Y2 JP H0318928 Y2 JPH0318928 Y2 JP H0318928Y2 JP 1983105445 U JP1983105445 U JP 1983105445U JP 10544583 U JP10544583 U JP 10544583U JP H0318928 Y2 JPH0318928 Y2 JP H0318928Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- slit
- alarm
- gas detection
- inspection port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Description
【考案の詳細な説明】
本考案はガス警報器、特に接触燃焼式ガス警報
器の検知部構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas alarm, particularly to a structure of a detection part of a catalytic combustion type gas alarm.
従来のガス警報器、特に接触燃焼式ガス警報器
は第１図ａに示す正面図、及びそのイ−イ断面図
である第１図ｂに示されるような外装ケースａを
被着した本体内にガス検知部ｂを収容して構成さ
れているが、この検知部ｂに対向する外装ケース
ａの位置には複数個の孔スリツトｃ又は千鳥格子
状のスリツト（図示せず）が貫設されている。し
かし、このように構成された従来のガス警報器の
ガス検知部にあつてはスリツトｃからガス検知部
ｂに到達するガスは、スリツトｃから同時に侵入
してくる風の影響を受けて撹乱され易く、従つて
精度良くガスを検知することができず、ガス警報
器の性能を極めて不安定なものとしていた。又、
ガス警報器の点検に際して点検用のガスをスリツ
トｃからガス検知部ｂに吹き付ける際、吹付ガス
が直接高濃度でガス検知部に接触し、ガス検知部
ｂの劣化を促進してその寿命を著しく短縮させる
などの欠点があつた。 A conventional gas alarm, especially a catalytic combustion type gas alarm, has a main body covered with an outer case a as shown in the front view shown in Fig. A gas detection part b is accommodated in the outer case a, and a plurality of holes slits c or houndstooth slits (not shown) are formed through the exterior case a at a position facing the detection part b. has been done. However, in the gas detection section of the conventional gas alarm configured as described above, the gas reaching the gas detection section b from the slit c is disturbed by the influence of the wind that simultaneously enters from the slit c. Therefore, gas cannot be detected with high accuracy, making the performance of the gas alarm extremely unstable. or,
When inspecting gas alarms, when blowing inspection gas from slit c to gas detection part b, the blown gas directly contacts the gas detection part at a high concentration, accelerating deterioration of gas detection part b and significantly shortening its lifespan. It had some shortcomings, such as being shortened.
本考案はかかる従来のガス警報器の問題点に鑑
がみてなされたもので、周囲環境による影響、特
に外装ケースのスリツトを通してガス検知部に侵
入してくる風の影響を防止し、又、点検に際して
も点検用ガスからガス検知部を保護することによ
り検知精度が良く、かつ検知部の劣化を防止して
耐久性の向上を図つたガス警報器の検知部構造を
提供することを目的としたものである。 The present invention was developed in view of the problems of conventional gas alarms, and it prevents the influence of the surrounding environment, especially the influence of wind that enters the gas detection part through the slit in the outer case, and also prevents inspection. The purpose of the present invention is to provide a structure for the detection part of a gas alarm that has good detection accuracy by protecting the gas detection part from inspection gas even when the detection part is used, and also improves durability by preventing deterioration of the detection part. It is something.
以下に本考案を添付の図面に基づいて説明す
る。 The present invention will be explained below based on the accompanying drawings.
第２図は本考案の検知部構造を具備するガス警
報器の一実施例を示す正面図、第３図は第２図の
Ａ−Ａ断面図、第４図は本考案の検知部構造に使
用されるパンチングメタルフイルタ板の正面図で
ある。 Fig. 2 is a front view showing an embodiment of a gas alarm equipped with the detection part structure of the present invention, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a front view showing an embodiment of the gas alarm equipped with the detection part structure of the present invention. It is a front view of the punched metal filter board used.
図において１はプラスチツク等の材料で一体成
型されたガス警報器の外装ケースで本体２の前面
に被着されるものである。外装ケース１の板面に
はガス警報器本体２内の配線板５に固定装着され
たガス検知部４へのガスの拡散を円滑にするため
の複数個のスリツト群３，３′が適宜の位置に貫
設されている。しかして、ガス検知部４に対向す
る外装ケース１の板面にはスリツト群３が貫設さ
れ、又、該スリツト群３のガス検知部４に近接し
た位置には点検ガス容器６のノズル６′を当接さ
せるための点検口７が設けられている。 In the figure, reference numeral 1 denotes an exterior case of the gas alarm which is integrally molded from a material such as plastic and is attached to the front surface of the main body 2. A plurality of slit groups 3, 3' are provided on the plate surface of the exterior case 1 to facilitate the diffusion of gas to the gas detection section 4 fixedly attached to the wiring board 5 in the gas alarm main body 2. penetrated in position. A group of slits 3 is provided through the plate surface of the exterior case 1 facing the gas detection section 4, and a nozzle 6 of the inspection gas container 6 is located at a position close to the gas detection section 4 of the slit group 3. An inspection port 7 is provided for contacting .
なお、点検ガス容器６はガス警報器の点検時に
図示の如く配置して使用されるものである。 The inspection gas container 6 is arranged as shown in the figure and used when inspecting the gas alarm.
かかる構成からなるガス警報器において、本考
案においてはガス検知部４とガス検知部４に対向
して貫設されたスリツト群３との間にパンチング
メタルフイルタ板８が介装されている。このパン
チングメタル８は第４図に示すようにアルミニウ
ム板等を打ち抜き製作された金属板からなり、ガ
ス検知部４と対向するスリツト群３の外周と略同
様の形状及び面積を有し、前記点検口７の直下を
除く板面の任意の個所に、スリツト３の幅及び点
検口７の径よりも充分小さな複数個の小孔９を貫
設したものである。このパンチングメタル８の装
着は外装ケース１のスリツト群３の外周に対応す
る本体２の前部枠２′に複数個の突起１０を内方
に設け、この突起１０にパンチングメタル８の外
周に設けた複数個の凹部１１を係合させてスリツ
ト群３に対向して並設させる方法その他適宜の手
段を用いてスリツト群３とガス検知部４との間に
介装させることができる。 In the gas alarm having such a configuration, in the present invention, a punched metal filter plate 8 is interposed between the gas detection section 4 and the slit group 3 which is provided through the gas detection section 4 so as to face the gas detection section 4. As shown in FIG. 4, this punching metal 8 is made of a metal plate produced by punching an aluminum plate or the like, and has a shape and area approximately the same as the outer periphery of the slit group 3 facing the gas detection section 4. A plurality of small holes 9, which are sufficiently smaller than the width of the slit 3 and the diameter of the inspection port 7, are provided at arbitrary locations on the plate surface except directly below the port 7. To attach the punching metal 8, a plurality of protrusions 10 are provided inwardly on the front frame 2' of the main body 2 corresponding to the outer periphery of the slit group 3 of the exterior case 1, and a plurality of protrusions 10 are provided on the outer periphery of the punching metal 8 on the protrusions 10. It can be interposed between the slit group 3 and the gas detection section 4 by using a method of engaging a plurality of recesses 11 and arranging them in parallel opposite to the slit group 3 or other appropriate means.
次に本考案の作用について説明すると、ガス警
報器の周囲環境からガス検知部に近いスリツト群
３を通して侵入する風はこのパンチングメタル８
の面に衝突して弱められるから、ガス検知部４周
辺の空気は侵入した風によつて撹乱されることが
なく、常に安定したガスの検知が可能となる。
又、ガス警報器の点検時においては、従来外装ケ
ース１の点検口７から点検ガスをノズル６′より
ガス検知部４に吹き付けていたが、パンチングメ
タルを介装させることにより点検ガスは一旦外装
ケース１とパンチングメタル８との隙間に入り、
次いでパンチングメタルの小孔９により拡散さ
れ、適度のガス濃度に稀釈されてガス検知部４に
達し検知される。 Next, to explain the operation of the present invention, the wind that enters from the surrounding environment of the gas alarm through the slit group 3 near the gas detection part is absorbed by the punched metal 8.
Since the air around the gas detection part 4 is not disturbed by the intruding wind, stable gas detection is possible at all times.
In addition, when inspecting a gas alarm, conventionally the inspection gas was sprayed from the inspection port 7 of the exterior case 1 to the gas detection part 4 through the nozzle 6', but by inserting a punching metal, the inspection gas is temporarily sprayed from the exterior. It enters the gap between case 1 and punching metal 8,
The gas is then diffused through the small holes 9 of the punching metal, diluted to an appropriate gas concentration, and reaches the gas detection section 4 where it is detected.
本考案は以上説明したように警報器本体に設け
られたガス検知部に対向して外装ケースにスリツ
トと点検口とを貫設してなるガス警報器におい
て、該スリツトの幅及び該点検口の径よりも充分
小さな小孔を該点検口の直下を除いて多数穿設し
たフイルタ板を前記ガス検知部と、該スリツト及
び点検口との間に介装させて構成されたガス検知
部構造であるから、ガス警報器の周囲環境特に風
等の影響に基づくガス警報器の性能の不安定が解
消され、更にガス警報器の点検に際して高濃度の
点検用ガスが直接検知部に接触してその劣化が促
進されることを防止し、ガス警報器の耐久性が向
上される利点を有する。 As explained above, the present invention provides a gas alarm in which a slit and an inspection port are provided through the exterior case opposite to a gas detection section provided in the alarm body, and the width of the slit and the inspection port are A gas detection part structure comprising a filter plate having a large number of small holes sufficiently smaller than the diameter thereof, except for the part directly below the inspection port, which is interposed between the gas detection part and the slit and the inspection port. This eliminates instability in the performance of the gas alarm due to the influence of the surrounding environment, especially wind, and also prevents high concentration inspection gas from coming into direct contact with the detection part when inspecting the gas alarm. This has the advantage of preventing accelerated deterioration and improving the durability of the gas alarm.
第１図ａは従来のガス警報器の外装ケースの正
面図、ｂは第１図のイ−イ断面図、第２図は本考
案のガス警報器の正面図、第３図は第２図のＡ−
Ａ断面図、第４図はパンチングメタルの正面図で
ある。
１……外装ケース、２……本体、３，３′……
スリツト群、４……ガス検知部、６……点検用ガ
ス容器、７……点検口、８……パンチングメタル
（フイルタ板）、９……小孔。
Figure 1a is a front view of the exterior case of a conventional gas alarm, b is a cross-sectional view taken along the line E in Figure 1, Figure 2 is a front view of the gas alarm of the present invention, and Figure 3 is Figure 2. A-
A sectional view and FIG. 4 are front views of the punched metal. 1...Exterior case, 2...Main body, 3, 3'...
Slit group, 4...Gas detection section, 6...Gas container for inspection, 7...Inspection port, 8...Punching metal (filter plate), 9...Small hole.
Claims (1)
外装ケースにスリツトと点検口とを貫設してなる
ガス警報器において、該スリツトの幅及び該点検
口の径よりも充分小さな小孔を該点検口の直下を
除いて多数穿設したフイルタ板を前記ガス検知部
と、該スリツト及び点検口との間に介装させたこ
とを特徴とするガス警報器の検知部構造。 In a gas alarm in which a slit and an inspection port are provided through the exterior case opposite to a gas detection section provided in the alarm body, a small hole that is sufficiently smaller than the width of the slit and the diameter of the inspection port is provided. 1. A structure for detecting a gas alarm, characterized in that a filter plate having a plurality of perforations except directly below the inspection port is interposed between the gas detection section and the slit and the inspection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10544583U JPS6015655U (en) | 1983-07-08 | 1983-07-08 | Detection part structure of gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10544583U JPS6015655U (en) | 1983-07-08 | 1983-07-08 | Detection part structure of gas alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6015655U JPS6015655U (en) | 1985-02-02 |
| JPH0318928Y2 true JPH0318928Y2 (en) | 1991-04-22 |
Family
ID=30247153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10544583U Granted JPS6015655U (en) | 1983-07-08 | 1983-07-08 | Detection part structure of gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015655U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0297576U (en) * | 1989-01-18 | 1990-08-03 | ||
| JPH0585560U (en) * | 1992-04-24 | 1993-11-19 | 株式会社ベッセル工業 | Bit holder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4928083U (en) * | 1972-06-13 | 1974-03-11 |
-
1983
- 1983-07-08 JP JP10544583U patent/JPS6015655U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6015655U (en) | 1985-02-02 |
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